Lip seal Reliant YM

metalcircularfor water

Reliant YM is the next evolution seal design in which total system weight is reduced and maintenance is simplified. Instead of a housing, the Reliant YM series uses flat interface plates bolted to the bulkhead, on which the seal floats, to allow for large radial motions of the shaft. Reliant YM seals are installed and operating on many vessels. Leak Rate - Less than 473 mL/min, 0.125 GPM Shaft Deflection Up to 50 mm High Angle/Vertical Operation Yes Shock Approved - Yes Self Centering Yes HydroActive Technology Foam with embedded hydrogel particles is the key technology that enables our HydroActive™ seals. The foam is placed inside a lip seal that is not normally in contact with the shaft. The hydrogel particles absorb water during a flooding event, and, as the particles swell, the foam pushes the lip seal into contact with the shaft - creating a water tight seal. In summary, under normal operating conditions, no part of the seal is in contact with the shaft - allowing for unlimited shaft rotation speed without any seal wear. During a flooding event, the engaged lip seal still allows the shaft to rotate, allowing the stricken ship to reach a safe haven. Operational Need Watertight bulkheads are a key safety feature for any ship. Sealing around pump, propulsion or any other spinning shaft as they penetrate these interior bulkheads is challenging. Most of the products available either rotate with the shaft or are constantly in contact with the shaft. Radial and axial shaft motions, shaft run out, high shaft angles or vertical shafts, vibrations, poor shaft to bulkhead alignment and air pressure differentials cause these products to wear prematurely.